twalthr opened a new pull request #8453: Flink 12254 pre URL: https://github.com/apache/flink/pull/8453 ## Brief change log This PR is a preparation for FLINK-12254. It fixes a couple of shortcomings when working with the new type system and adds the first utility classes that might useful for other contributions as well. ## Verifying this change See commit messages. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): no - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: yes - The serializers: no - The runtime per-record code paths (performance sensitive): no - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? yes - If yes, how is the feature documented? JavaDocs
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